ac: add LLVM code for triangle culling
[mesa.git] / src / amd / common / ac_shader_util.h
1 /*
2 * Copyright 2012 Advanced Micro Devices, Inc.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
21 * IN THE SOFTWARE.
22 */
23
24 #ifndef AC_SHADER_UTIL_H
25 #define AC_SHADER_UTIL_H
26
27 #include <stdbool.h>
28 #include <stdint.h>
29
30 #include "amd_family.h"
31 #include "ac_llvm_build.h"
32
33 unsigned
34 ac_get_spi_shader_z_format(bool writes_z, bool writes_stencil,
35 bool writes_samplemask);
36
37 unsigned
38 ac_get_cb_shader_mask(unsigned spi_shader_col_format);
39
40 uint32_t
41 ac_vgt_gs_mode(unsigned gs_max_vert_out, enum chip_class chip_class);
42
43 void
44 ac_export_mrt_z(struct ac_llvm_context *ctx, LLVMValueRef depth,
45 LLVMValueRef stencil, LLVMValueRef samplemask,
46 struct ac_export_args *args);
47
48 #endif